Improvement in base-burning stoves



UNITED STATES PATENT OFFICE.

DENNIS G. LITTLEFIELD, OF ALBANY, NEW YORK, AND GROVE H. JOHNSON, OF ERIE, PENNSYLVANIA.

IMPROVEMENT IN BASE-BURNING- STOVES.

Specification forming part of Letters Patent No. 101,476, dated Apr/Z 5, 1870.

To all whom it may concern Be it known that we, DENNIs G. LITTLE- FIELD, of the city and county of Albany, State of New York, and GROVE H. JOHNSON, of the city and county of Erie, in the State of Pennsylvania., have invented Improvements in the Construction of the Illuminating-Case of Base-Burning Stoves, of which the following is a specification:

Our invention consists in constructing such illuminating-cases with the doors or windows by which they are rendered illuminating so applied as to swing vertically downward, and occupy a horizontal or inclined position when open, to enable the apertures of the case to be used to receive cooking utensils of any kind, and to render the fuel more accessible at that part of the stove, and to facilitate the cleaning and insertion or removal of the mica, and to secure other advantages hereinafter enumerated; and it also consists in the manner of attaching the mica to the doors.

As represented in the drawings, Figure l is a stove of the Morning Glory pattern with this improvement applied, the illuminating-doors being shown closed; and Fig.2,the same with the doors open 5 Fig. 3, an inside view of one of the doors removed, showing the hinge and manner of holding the mica; and Fig. 4, a vertical section of one of the doors.

We construct the illuminating portion of the case of an annular section or casting, A, having any number of openings, B, to receive the mica doors. These openings are preferably of as large size as is consistent with the strength of the metal which remains between them in the separatingbars O C, in order to render the illumination more complete and the apertures more serviceable for other purposes. The lower rim of this section we attach by means of hin ges-ordinarily two for each door-to the doors D D, which receive the mica.

The hinges, as shown in Figs. 3 and 4, are preferably so situated as to be concealed by the lower edge of the door when closed, the latter being fastened by an ordinary turncatch at the top, or by other suitable device. These doors, on being opened, turn down, and may be allowed to hang at any inclination, but are preferably confined to a level or horizontal position, as shown in Fig. 2, where they rest, being supported by the projecting ring E of the case, or by special rests, if the form of the stove to which they apply does not supply such a needed support.

The apertures in the case which are thus opened correspond in position with the top ot' the combustion-chamber, exposing the fuel, and are adapted to the following uses: First, the reception of cooking utensils, as tea-kettles, water-boilers, spiders, and ovens, such being made of suitable form to adapt them to the openings, as in the utensils termed Morning Glory furniture, ingeniously adapted to. this purpose, and patented by S. Spoor, January 19, 1869; second, facilitating the removal of slate, clinkers, or other substances from the ytire while burning, enabling the mica to be conveniently cleaned upon the inside when it becomes fouled, and facilitating the removal or insertion of the same when necessary; third, the doors, when open and sustained in a. horizontal position, forming a useful table or support for light objects which need to be placed near the tire, as a cup, dish, or other vessel; fourth, the advantage that, when the doors are laid open, they remain in that position, instead of swinging to by gravity, owing to the inclined position of the case when hinged at the side in the usual manner; fifth, that the space surrounding and on a level with the apertures of the case is unoccupied, adapting it to many useful domestic purposes for which the stove is untted by doors which swing sidewise.

The forming of the illuminatingsection with vertically-swinging doors constitutes a case of novel form and construction, and develops new and useful functions.

Our method of holding the mica to the doors is as follows: The rims ff, which cover the edges of the mica plates g g, are connected bya cross-bar, h, slotted to pass over the lug or staple i. This bar is swelled outwardly, so as to present a convex surface to the fasten.- ing pin or keyj, which clamps it fast to the door.

The shape is such that whatever degree of elasticity there may be in the metal ofthe bar h acts to maintain a continued pressure of the framesff against the mica, insuring its retention,unaffeeted by the expansion and oontrnc- Y 3. Combining with :t vertically-swinging illuminating-door the arrangement of the. coneealed hinges lc I., substantially as and for the purpose set forth.

DENNIS G. LITTLEFIELD. GROVE H. JOHNSON.

Vitnesses as to Littlefield z E. O. PAULL, Guns. S. GoLLiNs. Titnesses as to Johnson W. T. BLACK, W. C. HULBERT. 

